Aluminum Driveshaft

[Hard_Limitz]

I once ordered the 6061 aluminum driveshaft from phase2motortrend. It took over a month for me to cancel. I could not take their false estimates anymore. Luckily B&E customs(LS Atuomotive) knows a place that makes them for $225.00 I will post more reviews later. I already installed the tanabe solid transmission bushing and will update more on how the driveshaft feels later. The bushing really tightened up the slop in the transmission. I am hoping the driveshaft will take more slop out as well as adding throttle response. Oh yeah the sucka is pretty thick. I would say about the same thickness as the bearing on the OEM 2piece driveshaft . However it feels really light . Oh yeah B&E customs(LS Automotive) can get them in a few days and not over a week. It is not listed on their website I don't think but talk to Eric and he will hook you up.http://www.bnecustoms.com/

[sanioll]

sorry, i'm not gonna search or do anything.

how much weight do you save over the original OEM??

[Hard_Limitz]

I believe it was 11lbs. It felt really light when I picked it up.

[Nissan-S14]

http://www.enjukuracing.com

[xtdup]

any pix dude?

[Hard_Limitz]

Enjuku Racing offers these prices.Driveshaft Nissan 240SX 89-94 w/abs Enjuku Racing Aluminum Driveshaft for Nissan 240SX w/ABS 89-94 429.99 Driveshaft Nissan 240SX 89-94 w/o abs Enjuku Racing Aluminum Driveshaft for Nissan 240SX w/o ABS, 89-94. 429.99 Driveshaft Nissan 240SX 89-94 w/abs Enjuku Racing Carbon Fiber Driveshaft for Nissan 240SX w/ABS, 89-94. 999.99 Driveshaft Nissan 240SX 89-94 w/abs Enjuku Racing Carbon Fiber Driveshaft for Nissan 240SX w/o ABS, 89-94. 999.99No I do not have pictures yet. But I can get them soon enough. I have to say even though it is only $225.00 for the driveshaft I noticed that it is NOT polished. It is a solid black. I will post pictures later. I figure I wanted to get some pictures of my suspension anyhow. I will update more later.

[Nissan-S14]

This is the best pic I found of my eenjuku alum driveshaft installed.

[240marcuSX]

was that $225 shipped? that is an amazing price, id really like to have a light driveshaft, but that $400+ price is ridiculous.

[vvaffle]

Something to consider: the weight you save is good for a general purpose of making your car lighter, however a ligther driveshaft does not necesarily mean better throtle response. If it is bigger in diameter than the stock one and/or most of its mass is closer to the surface rather than the center its moment of inertia(what you are actually trying to decrease) may be the same as the stock one. This is most likely not the case though and you will actually get a better throtle response but just don't think that throtle response is necesarily proportional to the weight of the driveshaft.

[n_bogie]

so acording to math a alum. drivshaft that has a smaller dia. would maybe be interesting? when i get my car back im going to design alot of my upgrade parts. just tring to get a general idea of which things might wor best.

[Chingon]

or a somewhat heavy steel driveshaft w/a small diameter.

[SimpleEnigma]

its really easy to calculate the moment of inertia of both driveshafts, the one with lesser moment of inertia is a better driveshaft, since it requires less torque to get it to rotate, and as such will improve your acceleration, some of the best shafts on the market are made by the DriveLine Shop, or so i hear, dont know the URL

i believe the equation is I=M*R^2 where M is the mass (not weight, take weight and divide by 32 ft/sec^2) of the driveshaft and R is the radius of the driveshaft.

[bendychicken]

well, even if your not shaving any inertia, you still cutting quite a bit of total curb weight with the alum shaft.

[USsil80]

you might want to add a drive shaft loop if you intend on doing any racing...

[vvaffle]

The moment of inertia equation depends on how the mass is distrubuted. I am sorry but I can't think of them off the top of my head but if you have two driveshafts with the same mass and radius and one is solid with the density the same everywhere and the other one is hollow, the one that is hollow will have a larger moment of inertia. Therefore one equation can no apply to both cases. One way to think about it is that you are trying to find the average radius of the mass. Therefore a hollow tube will have a higher "average radius" than a solid tube. A larger radius for the same mass means a larger moment of inertia. I am kinda making this simpler than it is but you could use this idea to figure out what should be better though not exactly by how much. If you search on google you should be able to find exact moment of inertia equations. I really don't know how much you can change the outer radius of the driveshaft considering it needs to fit where the old one did.